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102814290 = 23253143857
BaseRepresentation
bin1100010000011…
…01001001010010
321011110111200200
412020031021102
5202310024130
614111400030
72355623055
oct610151122
9234414620
10102814290
1153043997
122a523016
13183ba777
14d924a9c
15905d760
hex620d252

102814290 has 96 divisors (see below), whose sum is σ = 282686976. Its totient is φ = 25885440.

The previous prime is 102814289. The next prime is 102814297. The reversal of 102814290 is 92418201.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102814297) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 119542 + ... + 120398.

It is an arithmetic number, because the mean of its divisors is an integer number (2944656).

Almost surely, 2102814290 is an apocalyptic number.

102814290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 102814290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141343488).

102814290 is an abundant number, since it is smaller than the sum of its proper divisors (179872686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102814290 is a wasteful number, since it uses less digits than its factorization.

102814290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944 (or 941 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 102814290 is about 10139.7381622999. The cubic root of 102814290 is about 468.4729221183.

The spelling of 102814290 in words is "one hundred two million, eight hundred fourteen thousand, two hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 31 43 45 62 86 90 93 129 155 186 215 258 279 310 387 430 465 558 645 774 857 930 1290 1333 1395 1714 1935 2571 2666 2790 3870 3999 4285 5142 6665 7713 7998 8570 11997 12855 13330 15426 19995 23994 25710 26567 36851 38565 39990 53134 59985 73702 77130 79701 110553 119970 132835 159402 184255 221106 239103 265670 331659 368510 398505 478206 552765 663318 797010 1105530 1142381 1195515 1658295 2284762 2391030 3316590 3427143 5711905 6854286 10281429 11423810 17135715 20562858 34271430 51407145 102814290